A little more work on the lumps today. The pieces are getting closer to a near final closing position. I have ordered what is supposed to be an adjustable reamer so as to match the 8.83mm hinge pin. The marker arrow at the front shows where I need to shave off several thousands from the bottom of the block. Said another way, the 'T' slot is too deep. Easier though to take material off the block than guess the real/final depth of the slot! Supposedly, there's supposed to be several thousands clearance between action flats and barrel flats. There seems to be conflicting opinion with my 1934 Gunsmith's Bible. The bites will wait 'til later
Also the bottom rear shows where the square block is binding....some rounding off needed. The little projection sticking out the rear is the locking bolt. That is in there to make sure the rear angle , or curve, of the front lump....called the 'bolt run up'( learned that from Mr. Brown's book)...actually moves the bolt as it closes.